This guide explores the foundational scientific principles of brewing and the availability of Jonathan Gagné's seminal work, The Physics of Filter Coffee Availability and Formats
Unlike espresso, which uses high-pressure pumps, drip and pour-over methods rely on gravity to pull water through the grounds.
In print, finding every instance of "Reynolds number" or "tortuosity" requires an index. In the official , the text is fully searchable. If you forget the formula for extraction yield (EY = TDS * brew mass / dose mass), you type "EY" and you are there.
One such model is the " axial dispersion model," which describes the extraction of solutes from the coffee grounds. This model assumes that the coffee grounds are homogeneous and that the flow is one-dimensional.
Here is an exploration of the physics governing your morning cup.